# Prompt Maître — Infographie Fidulia
> Agent 21 — Design System | Créé le 2026-06-22
> Usage : génération des visuels Nano Banana pour les infographies Fidulia (header + banners cases)
> Modèle cible : `imagen-4.0-fast-generate-001` (proto) → `imagen-4.0-ultra-generate-001` (livrable)
> Référence : `NANO-BANANA-PROMPTS.md` · `BRIEF-MASCOTTES-ESCADRILLE.md` · `DESIGN-BRIEF.md`

---

## ⚠️ Règle crop universelle — à inclure dans TOUS les prompts

```
COMPOSITION RULE: Main subject centered vertically, occupying the middle third of the frame only.
Upper third of frame: background only — neutral, no key visual elements.
Lower third of frame: background only — neutral, no key visual elements.
This ensures safe cropping at any aspect ratio (2:1, 3:2, 16:5) without cutting into the subject.
```

---

## ⚠️ Negative prompt universel — à inclure dans TOUS les prompts

```
Negative: text, logos, watermarks, written words, letters, numbers, distorted anatomy,
extra fingers, low resolution, oversaturation, generic stock photo, cliché business imagery,
AI artifacts, white backgrounds, cartoon excess, childish style, neon glow, glassmorphism,
gradient backgrounds, orange anywhere except cubic heads.
```

---

## PROMPT MAÎTRE A — Header infographie

> Zone : header pleine largeur de l'infographie
> Format généré : `16:9`
> Format affiché : ~16:5 (bande horizontale centrale croppée via CSS)
> Aspect ratio Nano Banana : `16:9`
> Modèle : Ultra pour livrable

### Structure du prompt (remplir les {{VARIABLES}})

```
3D premium figurine render, Playmobil action figure quality, cinematic atmosphere,
photorealistic studio-grade lighting.

THÉMATIQUE: {{THEMATIQUE_DESCRIPTION}}

MASCOTTE: {{MASCOTTE_DESCRIPTION}}

COMPOSITION RULE: Main subject (mascotte) centered vertically, occupying the middle third
of the frame only. Upper third: background only. Lower third: background only.
Mascotte positioned center-right of the frame. Left two-thirds: deep navy atmosphere
(#0C132A), empty background, no characters or objects.

Background: deep navy #0C132A, subtle magenta #D70459 accent lighting on mascotte edges
and insignia. No stars, no gradients. Dark professional atmosphere.

Premium matte 3D figurine finish, cinematic subtle grain.
No text, no logos, no watermarks.

Negative: text, logos, watermarks, written words, letters, numbers, distorted anatomy,
extra fingers, low resolution, oversaturation, generic stock photo, cliché business imagery,
AI artifacts, white backgrounds, cartoon excess, childish style, neon glow, glassmorphism,
gradient backgrounds, orange anywhere except cubic heads.
```

### Valeurs des {{VARIABLES}} par thématique

#### Thématique LinkedIn

```
{{THEMATIQUE_DESCRIPTION}} :
LinkedIn professional network atmosphere, dark premium B2B editorial mood,
subtle floating connection nodes in the background (very faint, not dominant).

{{MASCOTTE_DESCRIPTION}} :
[À COMPLÉTER — nouveau personnage LinkedIn à générer via BRIEF-MASCOTTES-ESCADRILLE.md]
Placeholder : same body as Alphonse (navy flight suit, Fidulia magenta insignia),
distinctive LinkedIn-blue head shape, confident pilot stance.
```

#### Thématique IA

```
{{THEMATIQUE_DESCRIPTION}} :
Artificial intelligence studio atmosphere, clean dark environment,
very subtle circuit-pattern ambient glow in the deep background (not dominant).

{{MASCOTTE_DESCRIPTION}} :
3D premium figurine, Playmobil action figure style.
A terracotta orange hard plastic head shaped EXACTLY like the Anthropic Claude AI logo —
a rigid square block with sharp edges, TWO DEEP SYMMETRICAL RECTANGULAR NOTCHES cut into
the bottom-left corner and bottom-right corner of the lower edge, very slightly rounded
top corners only. Warm terracotta orange hard plastic surface with glossy sheen.
Full brown pompadour hairstyle, double-bridge metallic glasses, small walrus mustache.
Navy flight suit, magenta Fidulia insignia on left shoulder. Confident pilot stance.
```

---

## PROMPT MAÎTRE B — Banner case individuelle

> Zone : banner en haut de chaque case de la grille
> Format généré : `16:9`
> Format affiché : `2:1` (2 colonnes) ou `3:2` (3 colonnes) via CSS object-fit cover
> Aspect ratio Nano Banana : `16:9`
> Modèle : Fast pour proto, Standard pour livrable

### Structure du prompt (remplir les {{VARIABLES}})

```
3D minimal studio product illustration, clean and professional,
dark navy #0C132A background, magenta #D70459 rim accent light.

SUBJECT: {{SUJET_CASE}}

STYLE CLIENT: {{STYLE_CLIENT}}

COMPOSITION RULE: Main subject centered vertically, occupying the middle third of the frame.
Upper third: background only — neutral dark navy, no visual elements.
Lower third: background only — neutral dark navy, no visual elements.
Subject centered horizontally, generous negative space on both sides.

Soft diffuse studio light from upper-left. Magenta #D70459 rim light on right edge of subject.
Matte finish, ultra-sharp render, subtle film grain.
No text, no labels, no typography, no people, no faces, no logos.

Negative: text, logos, watermarks, written words, letters, numbers, distorted anatomy,
extra fingers, low resolution, oversaturation, generic stock photo, cliché business imagery,
AI artifacts, white backgrounds, cartoon excess, childish style, neon glow, glassmorphism,
gradient backgrounds, orange anywhere except cubic heads.
```

### Valeurs des {{VARIABLES}} par client

#### Client Fidulia

```
{{STYLE_CLIENT}} :
Fidulia design system — navy #0C132A dominant, magenta #D70459 accent only,
white #FFFFFF highlights. Hard-edge 3D objects, no gradients, no glassmorphism,
premium B2B professional aesthetic, matte surfaces.
```

### Exemples de {{SUJET_CASE}} — Fidulia thématique LinkedIn

| Case | {{SUJET_CASE}} |
|---|---|
| Sales Navigator | a polished dark steel radar targeting reticle with 4 floating network node spheres connected by thin white lines |
| Metricool | a compact floating analytics dashboard panel with ascending bar chart and a small clock face |
| Fidulia | a sleek metallic quill pen with circuit engravings, tip glowing faintly magenta, hovering above a thin document |
| Grille AMF | a dark navy shield with a clean white checkmark, three horizontal lines below suggesting a checklist |
| Alertes LinkedIn | a dark metal bell with 4 concentric radar wave arcs emanating outward, outermost arc in faint magenta |
| Notion CRM | three stacked dark navy card panels fanned slightly, the front card brighter |
| Canva Pro | a square dark steel artboard frame with a small color dot strip along the bottom edge |
| 360Brew Algo | a cluster of 7 interconnected network node spheres, linked by weighted white edges |
| L'Essentiel CGP | a rolled dark paper document partially unrolled, with a small official seal embossed at the top |

---

## Process d'exécution

### Via MCP Nano Banana (Claude Code direct)
1. Copier le prompt maître A ou B
2. Remplir les {{VARIABLES}} selon le client et la case
3. Appeler `mcp__gemini-nano-banana__generate_image` avec :
   - `prompt` : prompt complété
   - `model` : `imagen-4.0-fast-generate-001` (proto) ou `imagen-4.0-ultra-generate-001` (final)
   - `aspect_ratio` : `"16:9"`
   - `output_dir` : `Clients/{{CLIENT}}/Design/Production/{{SEMAINE}}/drafts/`
4. Valider avec `analyze_media` → si OK → relancer en Ultra vers `/final/`

### Via n8n (automatisation)
1. Node Claude : générer le prompt complété à partir du brief de la case
2. Node HTTP : appeler API Nano Banana avec le prompt
3. Node stockage : déposer l'image dans `Design/Production/{{SEMAINE}}/`
4. Node HTML : injecter le chemin image dans le template infographie

---

## Convention de nommage des outputs

```
fidulia-header-linkedin-v1.png      → header thématique LinkedIn
fidulia-header-ia-v1.png            → header thématique IA
fidulia-case-sales-navigator-v1.png → banner case Sales Navigator
fidulia-case-metricool-v1.png       → banner case Metricool
[etc.]
```